Nut-lock



- (Modeld- W. WEAVER. NUT LOOK.

No. 259,250 Patented June 6, 1882.

&

. UNITED STATES PATENT OFFICE.

WILLIAM WEAVER, OF PHGENIXVILLE, PENNSYLVANIA.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 259,250, dated June 6, 1882.

Application filed April 11, 1882. (ModeL) To all whom it may concern:

Be it known that I, WILLIAM WEAVER, of Phoenixville,in the county of Chester and State of Pennsylvania, have invented certain new and useful Improvements in NutLocks; and I do hereby declare the following to be a full, clear, and exact description of theiuvention,such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanyingdrawin gs, which form part of this specification.

My invention relates to an improvement in nut-locks; and it consists in the combination of a series of plates which are provided with suitable holes, so as to fit over the nuts, the last plate that is secured in place having a slot, so as to allow the plate an endwise movement, and a turned-up end, so as to catch against the side of the nut, as will be more fully described hereinafter.

The object of my invention is to produce a cheap, simple, and effieient nut-lock, which is composed of a number of thin metallic plates, all of which are locked in position by the last plate that is applied, without the use of keys, pins, screws, or other such devices as have heretofore been used.

Figure 1 is a side elevation of my invention complete. Fig. 2 is a plan view of the same. Fig. 3 is a horizontal section of the.

same. Fig. 4 is a detached view of the last plate that is secured in position. Fig. 5 is a detail view of one of the locking-plates, G. V

A represents the bolts, and B the nuts, which are of ordinary construction. After the first nut has been tightened upon its bolt the first one of the lockingplates, O, has its end having the square hole through it passed down over the nut, and at the same timehas its other end, havingthe round hole through it, passed down over the next adjoining bolt of the series, before the nut is applied to it. The nut is then applied to this second bolt, and the other plates are then applied in a similar manner. These plates are here shown as having but two holes through them, though they can be made with a larger number,if so desired, should therebe a larger number of nuts than four to be locked in position, The first plate that is placed in posit-ion rests solidly against the rear plate, F, while the second plate has one end to rest upon the top of the first plate, and its other end to come in contact with the rear plate, as shown. The other plates are arranged in the same relative position to each other. All of the plates used, with the exception of the last one, have small rectangular holes made through them, just large enough to catch over the nuts, and thus prevent the nuts from being turned in .either direction unless the plates are removed. The last plate, I, that is applied, and which looks the whole series in position, is provided with a square hole at one end just sufficiently large to fit. over the nut, while at the other end there is a slot or recess, M, made in the plate, which is just large enough to fit over the bolt itself. The outer end of this plate is also turned up a sufficient distance, as is shown, so as to catch against the side of the nut, and thus lock it in position after the nut has been tightened down upon the top of the plate. In securing this last plate in position, the plate is moved outward fromthe other plates the full length of the slot, so as to allow the nut to bescrewed down tightly upon its bolt without coming. in contact with the turned-up end J. After the nut has been tightened in place, sometoolis ap plied to the end of the plate having the turnedup part J and the plate is moved endwise until the flange J comes up against the nut which has just been screwed into position. One end of this plate is sprung outward, so as to bear against the end of the bolt over which it is to catch, and as the plate is forced endwise, so as to cause the flange to catch against the side of the outer nut, the square hole through the inner end of the plateis made to snap down over its nut. This plate, bearing upon the end of the plate next adjoining to it, serves as a lock for the whole series of plates used, and none of the other plates can be removed until this end plate has been first taken ofi'. In order to take 011' this last plate, its inner end must be first pried outward from over the top of the nut-and then the plate driven endwise, so as to move the flange J away from the side of the outer nut, and then this outer not can be unscrewed and the plates readily removed.

This-nut-lock does not show upon its face how the plates are made to lock each other in position, and hence is a very safe and secure lock for uniting the rails of railroads together.

The lock is equally adapted for all places where with the two bolts and their nuts, substantially IO nuts are to be locked in position. as shown.

Having thusdescribed my invention, I In testimony whereof I aflix my signature in claimpresence of two witnesses.

In a nut-lock, the combination of the plate I, having a hole through one end to catch over a nut, and a slot through its other end to catch Witnesses: over a bolt, and having its slotted end turned EDGAR LIMINGER, upward so as to catch against the side ofa nut, D. W. BRoWER.

WILLIAM 'WEAVER. 

